Since it is Nevada, I would think it is 1 or ours. Just think about it, the last really great plane our air force produced was the stealth fighter and bomber and that was in the 80s. So there has been no new planes developed in over 30 years? Please, with all the $ we spend on defense. Our military/government has technology, over 7000 top secret patents, that we cannot even dream of. Showing us these UFOs is part of the disclosure process.